|Definitions of moderate and severe impairment|
|Cognitive||Under 1% of factor 1 OR factor 2 in 296 children with negative response of TQQ||Inability to successfully complete even one cognitive test item|
|Motor a||Difficulty in grip, dressing and sitting. Ability to move around with help.||Inability to walk and absence of functional use of hands|
|Epilepsy a||More than one non-febrile seizure per month||More than one non-febrile seizure per week.|
|Hearing a||At least one positive response in screening tests and 41–70 dB loss in the best ear.||More than 70 dB loss in the best ear|
|Vision a||Visual acuity less than 6/18 or better than 6/60||Visual acuity worse than 6/60 meters or better than 3/60|
a Adopted from WHO procedure manual.
Kawakatsu et al.
Kawakatsu et al. BMC Pediatrics 2012 12:186 doi:10.1186/1471-2431-12-186